Facility Needs--soil and Water Conservation Research
Author : United States. Department of Agriculture
Publisher :
Page : 204 pages
File Size : 41,36 MB
Release : 1959
Category : Soil conservation
ISBN :
Author : United States. Department of Agriculture
Publisher :
Page : 204 pages
File Size : 41,36 MB
Release : 1959
Category : Soil conservation
ISBN :
Author : Joseph L. Arnold
Publisher :
Page : 144 pages
File Size : 38,56 MB
Release : 1988
Category : Flood control
ISBN :
Author : Sharon E. Kroening
Publisher :
Page : 122 pages
File Size : 33,11 MB
Release : 2004
Category : Earth sciences
ISBN :
Author : Donald C. Bacon
Publisher :
Page : 606 pages
File Size : 12,33 MB
Release : 1995
Category :
ISBN :
Author : Eric John Abrahamson
Publisher :
Page : 250 pages
File Size : 40,7 MB
Release : 2013-10
Category : Charities
ISBN : 9780979638961
Author : National Research Council
Publisher : National Academies Press
Page : 399 pages
File Size : 35,89 MB
Release : 2013-10-04
Category : Technology & Engineering
ISBN : 0309264944
Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward reviews the science that underpins the Bureau of Land Management's oversight of free-ranging horses and burros on federal public lands in the western United States, concluding that constructive changes could be implemented. The Wild Horse and Burro Program has not used scientifically rigorous methods to estimate the population sizes of horses and burros, to model the effects of management actions on the animals, or to assess the availability and use of forage on rangelands. Evidence suggests that horse populations are growing by 15 to 20 percent each year, a level that is unsustainable for maintaining healthy horse populations as well as healthy ecosystems. Promising fertility-control methods are available to help limit this population growth, however. In addition, science-based methods exist for improving population estimates, predicting the effects of management practices in order to maintain genetically diverse, healthy populations, and estimating the productivity of rangelands. Greater transparency in how science-based methods are used to inform management decisions may help increase public confidence in the Wild Horse and Burro Program.
Author : Lary M. Dilsaver
Publisher :
Page : 0 pages
File Size : 47,18 MB
Release : 2016
Category : Desert conservation
ISBN : 9781938086465
National parks are different from other federal lands in the United States. Beginning in 1872 with the establishment of Yellowstone, they were largely set aside to preserve for future generations the most spectacular and inspirational features of the country, seeking the best representative examples of major ecosystems such as Yosemite, geologic forms such as the Grand Canyon, archaeological sites such as Mesa Verde, and scenes of human events such as Gettysburg. But one type of habitat--the desert--fell short of that goal in American eyes until travel writers and the Automobile Age began to change that perception. As the Park Service began to explore the better-known Mojave and Colorado deserts of southern California during the 1920s for a possible desert park, many agency leaders still carried the same negative image of arid lands shared by many Americans--that they are hostile and largely useless. But one wealthy woman--Minerva Hamilton Hoyt, from Pasadena--came forward, believing in the value of the desert, and convinced President Franklin D. Roosevelt to establish a national monument that would protect the unique and iconic Joshua trees and other desert flora and fauna. Thus was Joshua Tree National Monument officially established in 1936, with the area later expanded in 1994 when it became Joshua Tree National Park. Since 1936, the National Park Service and a growing cadre of environmentalists and recreationalists have fought to block ongoing proposals from miners, ranchers, private landowners, and real estate developers who historically have refused to accept the idea that any desert is suitable for anything other than their consumptive activities. To their dismay, Joshua Tree National Park, even with its often-conflicting land uses, is more popular today than ever, serving more than one million visitors per year who find the desert to be a place worthy of respect and preservation. Distributed for George Thompson Publishing
Author :
Publisher :
Page : 900 pages
File Size : 11,43 MB
Release : 1907
Category : Iowa
ISBN :
Author :
Publisher :
Page : 208 pages
File Size : 19,88 MB
Release : 1988
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 136 pages
File Size : 33,34 MB
Release : 1977
Category : Education
ISBN :